For the quickest response from the maintainers, consider using the slack channel: #boost-json https://cppalliance.org/slack/ I have also raised this issue. On Fri, 24 Feb 2023 at 10:48, Pavel Vazharov via Boost-users < boost-users@lists.boost.org> wrote:
Hi there,
Looking at the source code of boost::json this behavior doesn't seem customizable because it calls - detail::format_double in serializer::write_number and the former further calls ryu::d2s_buffered_n. I could be missing something here, though. So it's probably better to wait for more opinions on the subject. On the other hand, you can always serialize the json::value manually in a way similar to the one shown in this example - https://www.boost.org/doc/libs/1_81_0/libs/json/doc/html/json/examples.html#... . This way you'll have control how exactly you want to display the float values.
HTH, Pavel.
On Fri, Feb 24, 2023 at 11:25 AM Markus Pieper via Boost-users < boost-users@lists.boost.org> wrote:
Hi there,
I convert a std::vector<std::vector<float>> to a JSON string. Basically it works, but the format is scientific: "[[1.017E3,1.017E3,1.017E3 ... ]]"
My method looks now like this:
std::string Class::convertFieldAsJSON(std::vector<std::vector<float>> field) { return boost::json::serialize(boost::json::value_from(field)); }
It works, but my colleagues want to see a 1017 and not 1.017E3 in the output. Is there a way to format the string?
Thanks in advance, Markus
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